ASICS Men's GEL-Fortitude 5 Running Shoe 100% Synthetic and mesh Rubber sole Rearfoot and Forefoot GEL Cushioning Systems Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. ComforDry Sockliner Provides cushioning performance and anti-odor properties for a cooler, drier, healthier environment. Trusstic System